Silodosin Impurity 5 CAS CATO-C4X-17545
| CAS No. | CATO-C4X-17545 |
| Molecular Formula | C22H24F3N3O3 |
| Molecular Weight | 435.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Silodosin Impurity 5 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Silodosin Impurity 5 (CAS CATO-C4X-17545) is a certified pharmaceutical impurity reference standard with the molecular formula C22H24F3N3O3 and a molecular weight of 435.44 g/mol.
Based on its molecular formula C22H24F3N3O3, Silodosin Impurity 5 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 435.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C22H24F3N3O3 |
| Molecular Weight | 435.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Silodosin Standards
- Silodosin Impurity 15 (CAS 2052161-50-7)
- Silodosin Depropanol Impurity1 (CAS 2052161-47-2)
- Silodosin Impurity 6 (CAS 2755910-23-5)
- Silodosin Impurity 11 (CAS 239463-74-2)
- Silodosin Impurity 7 (CAS 350797-56-7)
- Silodosin Impurity 9 (CAS 885340-13-6)
- Silodosin Impurity 1 (CAS 175870-21-0)
- Silodosin (CAS 160970-64-9)
Recommended Standards
- 4-Fluoro-N-(triphenylphosphoranylidene)benzenesulfonamide (CAS 105899-98-7)
- Fluticasone Impurity 83 (CAS CATO-C4X-165083)
- (11bR)-N-benzyl-N-methyldinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine (CAS 1221902-06-2)
- N-Fmoc-2-fluoro-O-methyl- L-Tyrosine (CAS 1998646-59-5)
- Palonosetron Impurity 20 (CAS 98841-72-6)
- Risperidone Impurity 25 (CAS 832747-59-8)
- N-Nitroso Linagliptin Dimer impurity 147 (CAS CATO-C4X-1101147)
- Neratinib Impurity 58 (CAS CATO-C4X-113458)
- N-(3-Chloro-4-methoxyphenyl)-2-((3-(4-methoxyphenyl)-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 477329-66-1)
- (2R)-2-[(4-Chlorophenoxy)methyl]oxirane (CAS 129098-58-4)
- 4-Chloro-5-(4,4,4-trifluorobutyl)pyrimidine (CAS 2254400-06-9)
- 3-(Phenylthio)propanoyl chloride (CAS 51849-21-9)
- 1-(3-Chlorophenyl)butan-1-one (CAS 21550-08-3)
- Cholecystokinin, CCK Tetrapeptide (30-33) (CAS 35144-91-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com